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Caster Material Advantages and Disadvantages

Caster Material Advantages and Disadvantages

2026-01-13

Comparative Table of Caster Material Advantages and Disadvantages

Material Type Advantages Disadvantages Typical Application Scenarios
Polyurethane (PU) 1. High wear resistance: Significantly more durable than ordinary rubber and nylon, with a long service life.
2. High load capacity: Adjustable hardness, with single-wheel load capacity reaching several tons.
3. Floor protection: Moderate elasticity, low noise, and no damage to wooden floors or epoxy coatings.
4. Chemical resistance: Resists oils, weak acids, bases, and solvents.		 1. Limited temperature resistance: Softens above 80°C and may become brittle below -20°C.
2. Susceptible to sharp objects: Easily cut on rough surfaces.
3. Higher cost: More expensive than ordinary rubber or plastic wheels.		 Heavy-duty equipment, logistics and warehousing, cleanrooms (e.g., factory trolleys, airport baggage carts).
Nylon (PA) 1. High strength and wear resistance: High hardness and load capacity, commonly used in ultra-heavy-duty casters.
2. Self-lubricating: Low friction coefficient, suitable for frequent movement.
3. Corrosion resistance: Resists most chemicals.		 1. High noise: Hard material produces noticeable noise on hard floors.
2. Poor shock absorption: Weak floor protection, unsuitable for soft surfaces.
3. Brittle at low temperatures: May become brittle in extremely cold environments.		 Mining machinery, port equipment, heavy-duty racking (high-load scenarios with noise tolerance).
Rubber 1. Shock absorption and anti-slip: Good elasticity and strong grip, effectively absorbs shocks.
2. Quiet operation: Low rolling noise, protects floors.
3. Cost-effective: More affordable than polyurethane or nylon.		 1. Moderate wear resistance: Wears faster under heavy loads or rough surfaces.
2. Poor temperature resistance: Ages and cracks at high temperatures; elasticity decreases at low temperatures.
3. Oil sensitivity: May swell or deform with prolonged exposure to oils.		 Medical equipment, hand carts, light to medium-load indoor and outdoor scenarios (e.g., supermarket shopping carts, tool carts).
TPR/TPE 1. Eco-friendly and quiet: Soft and elastic, low noise, meets environmental standards.
2. Lightweight: Easy to push due to low weight.
3. Customizable: Performance can be adjusted through compounding (e.g., temperature resistance).		 1. Limited load capacity: Suitable for light to medium loads; may deform under heavy loads.
2. Lower wear resistance: Less durable than polyurethane or nylon.
3. Complex manufacturing: Requires secondary injection molding, increasing cost.		 Shopping carts in malls, medical devices, indoor equipment with high environmental standards.
Cast Iron/Steel 1. Ultra-high load capacity: Can withstand 3–12 tons of extreme load.
2. Exceptional durability: Resists impact and wear, with an extremely long lifespan.		 1. Heavy weight: Difficult to move, low flexibility.
2. Prone to rust: Requires anti-corrosion treatment in humid environments.
3. Floor damage: Hard material may scratch floors.		 Port machinery, mining equipment, heavy production lines (extreme heavy-load scenarios).
Plastic (PP/Acrylic) 1. Lightweight and economical: Low cost, light weight, easy to clean.
2. Corrosion resistance: Resists acids and bases, suitable for humid environments.		 1. Low strength: Easily worn or deformed, poor load capacity.
2. Poor temperature resistance: PP wheels are suitable for -15°C to 80°C only.		 Light racking, indoor furniture, commercial display racks (light-load, low-cost scenarios).

Selection Recommendations

  1. Heavy-duty and high-frequency scenarios (e.g., factories, logistics):

    • Preferred: Polyurethane wheels (high wear and load resistance) or nylon wheels (cost-effective).
    • Avoid: Plastic wheels.

  2. Noise reduction and floor protection needs (e.g., hospitals, laboratories):

    • Recommended: Rubber or TPR wheels.
    • Avoid: Hard materials like nylon.

  3. Extreme environmental adaptability:

    • High/low temperature or corrosive environments: Polyurethane wheels (excellent chemical resistance).
    • Cold storage environments: Special cold-resistant rubber or modified TPR wheels.

  4. Cost-sensitive scenarios:

    • Light load: Plastic wheels.
    • Medium load: Rubber wheels.
    • Heavy load: Invest in polyurethane or nylon wheels to reduce long-term replacement costs.